CEOS2: memory access violation when reading file list

[belikov]

In file frmts\ceos2\sar_ceosdataset.cpp, line ~1683:

sprintf( szThisExtension, "%s%s", 
         CeosExtension[e][iFile], 
         pszExtension+3 );

if there are files without extension in directory, then pszExtension is "" and pszExtension+3 cause to memory access violation. It should be condition check:

if (pszExtension[0] != '\0')
    sprintf( szThisExtension, "%s%s", 
         CeosExtension[e][iFile], 
         pszExtension+3 );
else
    sprintf( szThisExtension, "%s", 
         CeosExtension[e][iFile]);

[warmerdam]

Agreed, I have applied a slightly different version of the patch (avoiding issues with 1 and 2 character extensions) in trunk (r22301) and 1.8 branch (r22302).